Features:
DC 0-30V measurement range. It needs outer working power supply and the voltage is DC 4.5-30V.
High accuracy: Its decimal point will automatically move, meaning there is one digit after the decimal point when the voltage is higher than 10V, and 2 digits after the decimal point when the voltage lower than 10V,which allows more accurate display
Easy to connect wires: only two wires, the red connects to positive and black connects to negative.
Safe to use: has reversed connection protection, but screen display nothing when connected reversely.
Large screen and bright LED display, well Made, the strong plastic case prevents it from damaged.
It is perfect to monitor the condition of the battery, you can use it on your car, trailer, etc.

Note: the maximum input voltage can not exceed 30V, otherwise there is danger of burning.

Specification: